bpy.ops.object.select_inverse() removed from Python API?
select_inverse() was available up to 2.61 (API docs), it's missing in docs from 2.62 on.

The following operator inverts the current object selection and should be equivalent:

bpy.ops.object.select_all(action='INVERT')


You can get every past release here:
http://download.blender.org/release/

Blender.org forums were meant for developers, and the user community was mostly active on http://blenderartists.org/ anyway. Consider BA.org the successor to the official forums.